terminal

Desarrollador

JSON, Base64, hashing y utilidades para desarrolladores

Free developer utilities for JSON, encoding, hashing, JWT, SQL, CSS, and HTTP debugging. Most tools run locally in your browser so secrets and sample payloads stay on your device.

JSON & data formats

Format, compare, validate, and convert structured data.

data_object

Formateador JSON

Format and validate JSON data

jsonformatvalidate
data_object

Comparador JSON

Compare two JSON documents by structure, ignoring key order and formatting

json comparejson diffcompare json
fact_check

Validador de Esquema JSON

Validate JSON data against a JSON Schema

jsonschemavalidate
schema

Generador de Esquema JSON

Generate a JSON Schema from sample JSON data

jsonschemagenerate
data_object

Formateador YAML

Format and validate YAML documents

yamlformatbeautify
data_object

YAML ⇄ JSON

Convert between YAML and JSON formats

yamljsonconvert
description

TOML ⇄ JSON

Convert between TOML and JSON formats

tomljsonconvert
swap_horiz

JSON ⇄ XML

Convert between JSON and XML formats

jsonxmlconvert
code

Formateador XML

Format, validate and minify XML documents

xmlformatbeautify
data_object

JSON a Código

Generate TypeScript, C# or Java classes from sample JSON

json to typescriptjson to csharpjson to java
dataset

Generador de Datos de Prueba

Generate realistic fake names, emails and addresses as CSV or JSON

mock datafake data generatortest data

Encode, hash & tokens

Base64, HTML entities, hashes, JWT, and UUID helpers.

lock

Codificador Base64

Encode and decode Base64 strings

base64encodedecode
code

Codificador HTML

Encode and decode HTML entities

htmlencodedecode
numbers

Hash MD5

Generate MD5 hash from text or files

md5hashchecksum
key

Hash SHA-256

Generate SHA-256 hash from text or files

sha256hashchecksum
enhanced_encryption

Hash BCrypt

Generate and verify BCrypt hashes

bcrypthashpassword
shield

Hash Argon2

Generate and verify Argon2 hashes

argon2hashpassword
confirmation_number

Decodificador JWT

Decode and inspect JWT tokens

jwttokendecode
encrypted

Codificador JWT

Encode and sign JWTs with HS/RS/ES/PS algorithms in the browser

jwttokenencode
fingerprint

Generador de UUID

Generate unique UUIDs/GUIDs

uuidguidgenerate
tag

Convertidor Hexadecimal

Convert between hex, decimal and binary

hexdecimalbinary
key

Generador de Claves Secretas y Contraseñas

Generate cryptographically random API keys, UUIDs, hex and base64 secrets

secret key generatorapi key generatorrandom hex generator

Code format & minify

Beautify or minify JS, HTML, CSS, SQL, and TypeScript.

code

Embellecedor de JavaScript

Format messy or minified JavaScript into clean readable code

javascript beautifierjs formatterprettify javascript
javascript

Minificador / Embellecedor de JavaScript

Minify or beautify JavaScript code

javascriptminifybeautify
html

Minificador de HTML

Minify or beautify HTML including inline CSS and JavaScript

html minifierminify htmlcompress html
css

Minificador / Embellecedor de CSS

Minify or beautify CSS code

cssminifybeautify
integration_instructions

Formateador TypeScript

Format and beautify TypeScript code

typescriptformatbeautify
database

Formateador SQL

Format and beautify SQL queries

sqlformatquery
database

Generador de Consultas SQL

Visually build SELECT, INSERT, UPDATE and DELETE queries

sqlquerygenerator
manage_search

Probador de Regex

Test regular expressions with highlighting

regexregularexpression
difference

Comparador de Diferencias

Compare two texts and find differences

diffcomparetext

CSS & color tools

Gradients, shadows, radius, contrast, and color conversion.

gradient

Generador de Degradados CSS

Visually build CSS gradients

cssgradientgenerator
blur_on

Generador de Sombras CSS

Visually build CSS box-shadows

cssshadowgenerator
rounded_corner

Generador de Bordes Redondeados CSS

Visually build CSS border-radius

cssborder-radiusgenerator
contrast

Comprobador de Contraste de Color

Check WCAG accessibility compliance

colorcontrastwcag
tune

Convertidor de RGB a HEX

Drag RGB sliders and get HEX, HSL, HSV and CMYK live

rgb to hexcolor converterrgb sliders
colorize

Convertidor de HEX a RGB

Convert HEX to RGB, RGBA, HSL, HSV, CMYK and decimal with live preview

hex to rgbcolor converterhex to rgba

HTTP & APIs

Inspect URLs, headers, and craft API requests.

send

Probador de API

Send HTTP requests to any REST API and inspect the response - works with public endpoints and your localhost dev server

api testerapihttp
terminal

Generador de Curl

Build a correctly quoted curl command from a form, updating as you type

curl generatorcurl command buildergenerate curl command
list_alt

Visor de Cabeceras HTTP

Fetch a URL and inspect its response headers

httpheadersinspect
link

Analizador de URL

Parse and analyze URL components

urlparseanalyze
schedule

Generador de Cron

Generate cron expressions visually

cronschedulegenerate
html

Editor con Vista Previa HTML

Live HTML/CSS/JS playground

htmlcssjs
code_blocks

Captura de Fragmento de Código

Turn code or a quote into a windowed image you can post

code to imagecode screenshotcode card

Frequently asked questions

Most formatter, encoder, JWT, and hash tools run entirely in your browser. A few network tools (API request builder, header viewer) must contact the URL you ask them to, by design.

Yes. Format, validate, and beautify JSON online with no signup required.

The JWT Decoder inspects header and payload in your browser. Never paste production secrets into any online tool you do not trust; prefer local decoding for highly sensitive tokens.

Use JSON Compare for structure-aware diffs, or Diff Checker for raw text comparison.

Useful packs

Freelancer PackGet paid without opening five different apps.

Related categories

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